Leontin-Andrei Branga

Designed and shipped cross-platform Flutter + Firebase mobile apps for clients in sports, education, and operations sectors, owning the full lifecycle from requirements through deployment and post-launch support.

Built the FRA Management System (Flutter + Firebase) for the Romanian Aikido Federation, digitizing member registration, financial tracking, attendance logging, and QR-based member check-in; currently in active production use across multiple clubs.

Developed a companion Aikido Club app (Flutter + Firebase) for individual dojo management, handling payment records and attendance tracking for club administrators.

Delivered a two-app internal toolset (Flutter) for a pharmaceutical laboratory: a mobile app running on handheld NFC scanners for registering and tracking lab coat lifecycle across wash, dry, and disinfection cycles; and a Flutter web app connected to the same SQL database for analytics, report generation, and PDF export.

Engineered an AI-powered email marketing pipeline (n8n + GPT-4o + Pinecone + WooCommerce) that eliminated manual newsletter creation, pulling live product data, generating context-aware copy, and delivering via SMTP with zero manual intervention.

Built and publicly released HustlAI Appointment Scheduler, a WordPress plugin with booking management, availability configuration, email notifications, ICS attachments, anti-spam controls, and optional Google/Outlook calendar sync.

Built and maintained high-performance Flutter apps for Android and iOS, including a secure crypto wallet with encrypted key storage and streamlined transaction UX.

Developed modular meta-applications integrating multiple third-party APIs through a shared service layer, reducing per-integration setup time.

Improved app stability and responsiveness through proactive code reviews, unit testing, and performance profiling, collaborating directly with product managers and QA.

Delivered pixel-perfect UI aligned to design specs across both Android and iOS platforms.

Developed and maintained a 3D multiplayer educational platform using Unity, Photon, and C#, deployed in partnership with the Romanian Ministry of Education. Implemented classroom management features including grading, live permissions, and real-time 3D content sharing across concurrent virtual classrooms. Collaborated with designers to deliver polished VR learning environments optimized for educational engagement.